
1995 Chevrolet C2500 Suburban 7.4L Excessive Emissions
Need help guys. Car failed asm dyno smog test for nox. Linear egr can be commanded via scan tool on and off and will stall engine. During asm test, egr valve can be commanded to 75% and nox readings go from [...] to 100ppm. This tells me that ecm is not comman...
FIX posted 8/31/2012
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VIN | 1GNGK26N0S |
Engine | 7.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / tbi |
Emissions | Not OBD-II Compliant |
Symptoms | Excessive Emissions |
Message Closed
Vehicle Data
1995 Chevrolet C2500 Suburban
VIN | 1GNGK26N0S |
Engine | 7.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / tbi |
Emissions | Not OBD-II Compliant |
Symptoms | Excessive Emissions |